org.eclipse.wst.json.ui.internal.text.JSONHoverControlCreator.java Source code

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Here is the source code for org.eclipse.wst.json.ui.internal.text.JSONHoverControlCreator.java

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/**
 *  Copyright (c) 2013-2014 Angelo ZERR.
 *  All rights reserved. This program and the accompanying materials
 *  are made available under the terms of the Eclipse Public License v1.0
 *  which accompanies this distribution, and is available at
 *  http://www.eclipse.org/legal/epl-v10.html
 *
 *  Contributors:
 *  Angelo Zerr <angelo.zerr@gmail.com> - initial API and implementation
 */
package org.eclipse.wst.json.ui.internal.text;

import org.eclipse.jface.internal.text.html.BrowserInformationControl;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.text.AbstractReusableInformationControlCreator;
import org.eclipse.jface.text.DefaultInformationControl;
import org.eclipse.jface.text.IInformationControl;
import org.eclipse.jface.text.IInformationControlCreator;
import org.eclipse.jface.text.IInformationControlExtension4;
import org.eclipse.swt.widgets.Shell;

/**
 * Hover control creator for JSON.
 *
 */
public class JSONHoverControlCreator extends AbstractReusableInformationControlCreator {
    /**
     * The information presenter control creator.
     * 
     */
    private final IInformationControlCreator fInformationPresenterControlCreator;
    /**
     * <code>true</code> to use the additional info affordance,
     * <code>false</code> to use the hover affordance.
     */
    private final boolean fAdditionalInfoAffordance;

    /**
     * @param informationPresenterControlCreator
     *            control creator for enriched hover
     */
    public JSONHoverControlCreator(IInformationControlCreator informationPresenterControlCreator) {
        this(informationPresenterControlCreator, false);
    }

    /**
     * @param informationPresenterControlCreator
     *            control creator for enriched hover
     * @param additionalInfoAffordance
     *            <code>true</code> to use the additional info affordance,
     *            <code>false</code> to use the hover affordance
     */
    public JSONHoverControlCreator(IInformationControlCreator informationPresenterControlCreator,
            boolean additionalInfoAffordance) {
        fInformationPresenterControlCreator = informationPresenterControlCreator;
        fAdditionalInfoAffordance = additionalInfoAffordance;
    }

    /*
     * @see org.eclipse.jdt.internal.ui.text.java.hover.
     * AbstractReusableInformationControlCreator
     * #doCreateInformationControl(org.eclipse.swt.widgets.Shell)
     */
    @Override
    public IInformationControl doCreateInformationControl(Shell parent) {
        String tooltipAffordanceString = "Press F2 for focus";
        if (BrowserInformationControl.isAvailable(parent)) {
            String font = JFaceResources.DIALOG_FONT;
            BrowserInformationControl iControl = new BrowserInformationControl(parent, font,
                    tooltipAffordanceString) {
                /*
                 * @see org.eclipse.jface.text.IInformationControlExtension5#
                 * getInformationPresenterControlCreator()
                 */
                @Override
                public IInformationControlCreator getInformationPresenterControlCreator() {
                    return fInformationPresenterControlCreator;
                }
            };
            // addLinkListener(iControl);
            return iControl;
        } else {
            return new DefaultInformationControl(parent, tooltipAffordanceString);
        }
    }

    // protected void addLinkListener(BrowserInformationControl control) {
    // HoverLocationListener.addLinkListener(control);
    // }

    /*
     * @see org.eclipse.jdt.internal.ui.text.java.hover.
     * AbstractReusableInformationControlCreator
     * #canReuse(org.eclipse.jface.text.IInformationControl)
     */
    @Override
    public boolean canReuse(IInformationControl control) {
        if (!super.canReuse(control))
            return false;

        if (control instanceof IInformationControlExtension4) {
            String tooltipAffordanceString = "Press F2 for focus";
            ((IInformationControlExtension4) control).setStatusText(tooltipAffordanceString);
        }

        return true;
    }

}